1
Vincent Dupaquis, Michel Douguet: Randomized modular polynomial reduction method and hardware therefor. Atmel Rousset S, Schwegman Lundberg & Woessner P A, September 28, 2010: US07805480 (17 worldwide citation)

A cryptographically secure, computer hardware-implemented binary finite-field polynomial modular reduction method estimates and randomizes a polynomial quotient used for computation of a polynomial remainder. The randomizing error injected into the approximate polynomial quotient is limited to a few ...


2
Vincent Dupaquis, Michel Douguet: Encryption protection method. Atmel Rousset S, Schwegman Lundberg & Woessner P A, December 7, 2010: US07848515 (14 worldwide citation)

A deterministic blinding method for cipher algorithms that employ key-mixing and substitution (S-box) operations uses a masking table constructed with a true mask and a plurality of dummy masks corresponding to every possible S-box input. Each mask is applied in the key-mixing operation (e.g., bitwi ...


3
Yves Fusella, Stephane Godzinski, Laurent Paris, Jean Pascal Maraninchi, Samuel Charbouillot: Software adapted wear leveling. Atmel Rousset S, Fish & Richardson P C, August 14, 2012: US08244959 (10 worldwide citation)

A subset of software objects stored in a first segment of non-volatile memory are identified as requiring frequent write operations or otherwise associated with a high endurance requirement. The subset of software objects are move to a second segment of non-volatile memory with a high endurance capa ...


4
Dominique Parlange, Jean Pierre Enguent, Romain Palmade: Managing power and timing in a smart card device. Atmel Rousset S, Fish & Richardson P C, December 7, 2010: US07845568 (3 worldwide citation)

In some implementations, a mobile device includes a first interface configured to communicably couple to a removable integrated circuit card; a second interface configured to wirelessly communicate with a contactless reader that is external to the mobile device; a communication interface that couple ...


5
Michel Douguet, Vincent Dupaquis: Key protection mechanism. Atmel Rousset S, Schwegman Lundberg & Woessner P A, October 26, 2010: US07822207 (3 worldwide citation)

A method of protecting secret key integrity in a hardware cryptographic system includes first obtaining an encryption result and corresponding checksum of known data using the secret key, saving those results, then masking the secret key and storing the masked key. When the masked key is to be used ...


6
Sandrine Batifoulier, Stephane Godzinski, Vincent Dupaquis: Access rights on a memory map. Atmel Rousset S, Fish & Richardson P C, February 22, 2011: US07895404 (2 worldwide citation)

A microcontroller system, such as a system-on-a-chip integrated circuit, including a processor (e.g., a Von Neumann processor), memory, and a memory protection unit (MPU), where the MPU provides execute-only access rights for one or more protected areas of the memory. The MPU can allow instructions ...


7
Marc Merandat, Yves Fusella: Redundant bit patterns for column defects coding. Atmel Rousset S, Fish & Richardson P C, August 31, 2010: US07788550 (2 worldwide citation)

Techniques for coding and decoding redundant coding for column defects cartography. Defective cell groups identified in a memory array are redundantly encoded with a different bit pattern than the bit pattern used for functional cell groups. The identified defective cell groups are repaired using re ...


8
Willem Jan Toren, Bruno Villard, Elsa Hugonnard Bruyere, Gaetan Toulon, Frederic Morancho, Ignasi Cortes Mayol, Thierry Pedron: Enhanced HVPMOS. Atmel Rousset S, LAAS CNRE, Fish & Richardson P C, July 10, 2012: US08217452 (2 worldwide citation)

A p-channel LDMOS device with a controlled n-type buried layer (NBL) is disclosed. A Shallow Trench Isolation (STI) oxidation is defined, partially or totally covering the drift region length. The NBL layer, which can be defined with the p-well mask, connects to the n-well diffusion, thus providing ...


9
Eric Payrat, Majid Kaabouch: Apparatus for detecting a USB host. Atmel Rousset S, Fish & Richardson P C, May 22, 2012: US08183886 (2 worldwide citation)

A multi-interface integrated circuit (IC) comprises a plurality of transistors, and a level detection block. At least one transistor of the plurality of transistors is in communication with a first terminal and either a first or a second lead of the multi-interface IC, and at least one of the plural ...


10
Vincent Dupaquis, Michel Douguet: Randomized modular reduction method and hardware therefor. Atmel Rousset S, Schwegman Lundberg & Woessner P A, October 5, 2010: US07809133 (1 worldwide citation)

A cryptographically secure, computer hardware-implemented modular reduction method systematically underestimates and randomizes an approximate quotient used for computation of a remainder. The randomizing error injected into the approximate quotient is limited to a few bits, e.g. less than half a wo ...